I've been using an RT-N16 as the main router in my dad's dental office for about 2 years now. On Friday, it mysteriously died - lights on but no internet. We were able to restore it to factory by holding the WPS button and then re-set it up. But then it died again a few hours later. Both times, unplugging power and re-plugging resulted in no lights on the router. Any idea what happened? We're replacing it today with an RT-N66.